[POWERPC] Generic OF platform driver for PCI host bridges.

When enabled in Kconfig, it will pick up any of_platform_device
matching it's match list (currently type "pci", "pcix", "pcie",
or "ht" and setup a PHB for it.

Platform must provide a ppc_md.pci_setup_phb() for it to work
(for doing the necessary initialisations specific to a given PHB
like setting up the config space ops).

It's currently only available on 64 bits as the 32 bits PCI code
can't quite cope with it in it's current form. I will fix that
later.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 65588a6bd2fe..3d26ba7ad76d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,6 +223,11 @@ config PPC_DCR
         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
         default y
 
+config PPC_OF_PLATFORM_PCI
+        bool
+        depends on PPC64 # not supported on 32 bits yet
+        default n
+
 config BOOKE
         bool
         depends on E200 || E500
@@ -469,6 +474,7 @@ config PPC_CELL_NATIVE
         bool
         select PPC_CELL
         select PPC_DCR_MMIO
+        select PPC_OF_PLATFORM_PCI
         select MPIC
         default n